M1.6 earthquake 54 km WNW of Adak, Alaska

Magnitude

1.6 (ml), micro

Local time

Wed, Aug 18, 2021, 11:08 PM HADT

UTC

2021-08-19 08:08:07 UTC

Depth

127.6 km (79.3 mi), intermediate-depth

Epicenter

52.044° N, 177.385° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

28

After

1. 2.9113 km WSW of Adak, AlaskaThu, Aug 19, 11:16 AM HADT · 1865 days ago · 66 km deep · 81 km away
2. 1.7120 km WSW of Adak, AlaskaThu, Aug 19, 5:36 PM HADT · 1865 days ago · 66 km deep · 84 km away
3. 1.668 km SW of Adak, AlaskaSat, Aug 21, 2:56 AM HADT · 1864 days ago · 51 km deep · 65 km away
4. 1.610 km SW of Adak, AlaskaSat, Aug 21, 11:52 AM HADT · 1863 days ago · 81 km deep · 53 km away
5. 3.064 km SSW of Adak, AlaskaSat, Aug 21, 3:02 PM HADT · 1863 days ago · 35 km deep · 83 km away
6. 4.8128 km WSW of Adak, AlaskaSun, Aug 22, 2:45 AM HADT · 1863 days ago · 52 km deep · 96 km away · felt by 1
7. 1.915 km NE of Adak, AlaskaSun, Aug 22, 3:16 AM HADT · 1863 days ago · 151 km deep · 62 km away
8. 1.5133 km WSW of Adak, AlaskaSun, Aug 22, 8:39 AM HADT · 1863 days ago · 7 km deep · 91 km away
9. 1.550 km W of Adak, AlaskaSun, Aug 22, 9:16 PM HADT · 1862 days ago · 126 km deep · 9 km away
10. 2.055 km WSW of Adak, AlaskaMon, Aug 23, 2:13 AM HADT · 1862 days ago · 75 km deep · 33 km away
11. 1.8106 km WSW of Adak, AlaskaMon, Aug 23, 2:28 PM HADT · 1861 days ago · 26 km deep · 86 km away
12. 1.645 km E of Adak, AlaskaMon, Aug 23, 6:19 PM HADT · 1861 days ago · 68 km deep · 100 km away
13. 2.938 km SSW of Adak, AlaskaTue, Aug 24, 1:17 AM HADT · 1861 days ago · 39 km deep · 63 km away
14. 2.5Andreanof Islands, Aleutian Islands, AlaskaTue, Aug 24, 6:05 PM HADT · 1860 days ago · 35 km deep · 83 km away
15. 2.020 km WSW of Adak, AlaskaWed, Aug 25, 12:04 AM HADT · 1860 days ago · 77 km deep · 40 km away
16. 1.8137 km WSW of Adak, AlaskaWed, Aug 25, 3:59 PM HADT · 1859 days ago · 9 km deep · 100 km away
17. 1.829 km SSE of Adak, AlaskaWed, Aug 25, 8:39 PM HADT · 1859 days ago · 45 km deep · 79 km away
18. 1.665 km SSW of Adak, AlaskaThu, Aug 26, 9:09 AM HADT · 1859 days ago · 48 km deep · 77 km away
19. 2.062 km SSW of Adak, AlaskaThu, Aug 26, 10:26 AM HADT · 1858 days ago · 29 km deep · 76 km away
20. 1.543 km SW of Adak, AlaskaFri, Aug 27, 11:02 AM HADT · 1857 days ago · 64 km deep · 53 km away
21. 1.559 km W of Adak, AlaskaFri, Aug 27, 6:10 PM HADT · 1857 days ago · 7 km deep · 29 km away
22. 1.559 km W of Adak, AlaskaFri, Aug 27, 7:15 PM HADT · 1857 days ago · 12 km deep · 27 km away
23. 3.534 km S of Adak, AlaskaSat, Aug 28, 7:12 AM HADT · 1857 days ago · 46 km deep · 77 km away
24. 2.687 km WSW of Adak, AlaskaSat, Aug 28, 9:57 AM HADT · 1856 days ago · 33 km deep · 66 km away
25. 2.683 km SW of Adak, AlaskaSat, Aug 28, 12:01 PM HADT · 1856 days ago · 33 km deep · 70 km away
26. 1.942 km NE of Adak, AlaskaSat, Aug 28, 1:34 PM HADT · 1856 days ago · 189 km deep · 83 km away
27. 1.8Andreanof Islands, Aleutian Islands, AlaskaSat, Aug 28, 1:38 PM HADT · 1856 days ago · 13 km deep · 26 km away
28. 1.597 km WSW of Adak, AlaskaSat, Aug 28, 2:05 PM HADT · 1856 days ago · 73 km deep · 65 km away
29. 1.759 km W of Adak, AlaskaSun, Aug 29, 2:12 AM HADT · 1856 days ago · 7 km deep · 28 km away
30. 1.846 km NNW of Adak, AlaskaSun, Aug 29, 5:06 PM HADT · 1855 days ago · 138 km deep · 33 km away
31. 1.9111 km WSW of Adak, AlaskaSun, Aug 29, 8:57 PM HADT · 1855 days ago · 13 km deep · 79 km away
32. 2.717 km SE of Adak, AlaskaMon, Aug 30, 2:52 PM HADT · 1854 days ago · 112 km deep · 69 km away
33. 1.979 km SSW of Adak, AlaskaTue, Aug 31, 6:19 AM HADT · 1854 days ago · 28 km deep · 93 km away
34. 3.246 km ENE of Adak, AlaskaWed, Sep 1, 12:46 PM HADT · 1852 days ago · 137 km deep · 93 km away
35. 1.641 km SSE of Adak, AlaskaWed, Sep 1, 10:42 PM HADT · 1852 days ago · 34 km deep · 90 km away
36. 1.512 km SE of Adak, AlaskaThu, Sep 2, 2:30 AM HADT · 1852 days ago · 153 km deep · 67 km away
37. 1.710 km SSE of Adak, AlaskaFri, Sep 3, 2:30 AM HADT · 1851 days ago · 156 km deep · 62 km away
38. 1.5124 km WSW of Adak, AlaskaFri, Sep 3, 6:19 AM HADT · 1851 days ago · 7 km deep · 85 km away
39. 3.0123 km WSW of Adak, AlaskaSat, Sep 4, 3:07 PM HADT · 1849 days ago · 33 km deep · 92 km away
40. 1.8124 km WSW of Adak, AlaskaSat, Sep 4, 6:04 PM HADT · 1849 days ago · 70 km deep · 84 km away
41. 1.933 km ESE of Adak, AlaskaSat, Sep 4, 8:52 PM HADT · 1849 days ago · 61 km deep · 88 km away
42. 1.9134 km W of Adak, AlaskaSat, Sep 4, 10:19 PM HADT · 1849 days ago · 113 km deep · 84 km away
43. 1.6124 km W of Adak, AlaskaSun, Sep 5, 1:14 AM HADT · 1849 days ago · 11 km deep · 76 km away
44. 1.951 km ENE of Adak, AlaskaSun, Sep 5, 2:05 AM HADT · 1849 days ago · 163 km deep · 98 km away
45. 1.766 km SW of Adak, AlaskaSun, Sep 5, 5:37 PM HADT · 1848 days ago · 74 km deep · 56 km away
46. 1.8114 km WSW of Adak, AlaskaTue, Sep 7, 9:55 PM HADT · 1846 days ago · 15 km deep · 81 km away
47. 1.649 km SW of Adak, AlaskaTue, Sep 7, 11:09 PM HADT · 1846 days ago · 44 km deep · 60 km away
48. 1.739 km NE of Adak, AlaskaWed, Sep 8, 3:11 AM HADT · 1846 days ago · 132 km deep · 80 km away
49. 1.5Andreanof Islands, Aleutian Islands, AlaskaThu, Sep 9, 8:27 PM HADT · 1844 days ago · 59 km deep · 47 km away
50. 1.6146 km W of Adak, AlaskaSun, Sep 12, 6:49 AM HADT · 1842 days ago · 16 km deep · 99 km away
51. 2.7133 km W of Adak, AlaskaSun, Sep 12, 11:47 AM HADT · 1841 days ago · 141 km deep · 83 km away
52. 1.782 km W of Adak, AlaskaMon, Sep 13, 3:35 AM HADT · 1841 days ago · 12 km deep · 39 km away
53. 3.692 km SW of Adak, AlaskaMon, Sep 13, 6:44 AM HADT · 1841 days ago · 35 km deep · 78 km away
54. 1.553 km SW of Adak, AlaskaMon, Sep 13, 9:31 AM HADT · 1841 days ago · 46 km deep · 59 km away
55. 1.565 km SW of Adak, AlaskaWed, Sep 15, 5:52 PM HADT · 1838 days ago · 23 km deep · 63 km away
56. 2.0133 km W of Adak, AlaskaWed, Sep 15, 7:55 PM HADT · 1838 days ago · 15 km deep · 89 km away
57. 2.1136 km W of Adak, AKWed, Sep 15, 7:55 PM HADT · 1838 days ago · 17 km deep · 91 km away
58. 2.068 km SW of Adak, AlaskaFri, Sep 17, 12:31 AM HADT · 1837 days ago · 35 km deep · 58 km away
59. 3.224 km SSW of Adak, AlaskaFri, Sep 17, 12:40 PM HADT · 1836 days ago · 77 km deep · 63 km away
60. 2.0114 km WSW of Adak, AlaskaSun, Sep 19, 8:47 AM HADT · 1835 days ago · 48 km deep · 89 km away

The first 60 of 116.

Before

1. 1.6121 km W of Adak, AlaskaWed, Aug 18, 5:17 AM HADT · 1867 days ago · 92 km deep · 76 km away
2. 1.956 km W of Adak, AlaskaWed, Aug 18, 3:50 AM HADT · 1867 days ago · 92 km deep · 26 km away
3. 1.514 km SSE of Adak, AlaskaWed, Aug 18, 2:44 AM HADT · 1867 days ago · 80 km deep · 67 km away
4. 1.6132 km WSW of Adak, AlaskaTue, Aug 17, 9:16 AM HADT · 1868 days ago · 7 km deep · 90 km away
5. 2.760 km SW of Adak, AlaskaMon, Aug 16, 8:48 PM HADT · 1868 days ago · 69 km deep · 59 km away
6. 1.648 km SW of Adak, AlaskaMon, Aug 16, 1:41 PM HADT · 1868 days ago · 42 km deep · 62 km away
7. 1.793 km WSW of Adak, AlaskaMon, Aug 16, 2:35 AM HADT · 1869 days ago · 13 km deep · 67 km away
8. 1.667 km SSW of Adak, AlaskaSat, Aug 14, 8:38 AM HADT · 1871 days ago · 27 km deep · 83 km away
9. 1.6133 km WSW of Adak, AlaskaSat, Aug 14, 1:10 AM HADT · 1871 days ago · 7 km deep · 90 km away
10. 1.783 km SW of Adak, AlaskaFri, Aug 13, 11:26 PM HADT · 1871 days ago · 30 km deep · 68 km away
11. 1.539 km SSW of Adak, AlaskaFri, Aug 13, 4:55 PM HADT · 1871 days ago · 12 km deep · 60 km away
12. 1.620 km SE of Adak, AlaskaFri, Aug 13, 3:40 PM HADT · 1871 days ago · 71 km deep · 74 km away
13. 2.9Andreanof Islands, Aleutian Islands, AlaskaFri, Aug 13, 2:37 PM HADT · 1871 days ago · 33 km deep · 97 km away
14. 1.6115 km WSW of Adak, AlaskaFri, Aug 13, 12:13 PM HADT · 1871 days ago · 24 km deep · 88 km away
15. 3.142 km S of Adak, AlaskaFri, Aug 13, 8:38 AM HADT · 1872 days ago · 69 km deep · 85 km away
16. 1.5129 km WSW of Adak, AlaskaFri, Aug 13, 5:33 AM HADT · 1872 days ago · 7 km deep · 87 km away
17. 1.644 km SW of Adak, AlaskaFri, Aug 13, 5:03 AM HADT · 1872 days ago · 28 km deep · 59 km away
18. 1.8121 km WSW of Adak, AlaskaThu, Aug 12, 7:34 PM HADT · 1872 days ago · 8 km deep · 91 km away
19. 1.741 km ENE of Adak, AlaskaThu, Aug 12, 10:06 AM HADT · 1872 days ago · 6 km deep · 88 km away
20. 2.078 km SW of Adak, AlaskaThu, Aug 12, 7:51 AM HADT · 1873 days ago · 24 km deep · 66 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021am5yd8t. Read Mon, Sep 28, 2026, 6:14 AM UTC.